Manifolding medium



1 0 6 -7 9 CROSS REFERENCE EXAMINER M. L. COSSITT.

MANIFOLDING MEDIUM.

APPLICATION men xuu 15.1919.

1 ,3 5 3, 1 49. Patented Sept. 21, 1920.

,z Impmaubngkrzky lrmzrrial WITNEESS INVENTOR fifiZtd/m OC. (24112?! BY waxyhw 4 5 ATTORNEYS 1' *1 E (v; 1 L (9 lot-79 specification.

. manufacture it is to this general give, as an example,

MALCOLM L. COSSITT, or oaxnnm, -camroaitm, nssmuon T0 mamronn IMPRESSIONS CORPORATION, OF NEVADA.

or caissonm! NEVADA, A conroimpron immxromame r Application filed July 15,

To all whom it may concern:

Be it known that I, MALcoLM'L. .Cossrrr, a citizen ofothe United States, residing at Oakland, in the county of Alameda and State of California,'have invented certain new and useful Improvements in Manifolding Mediums, of which the following is a My invention relates to the manifolding art by which duplicates of writing, typlng, print1ng,,dr'awing," and other inscriptions are made by the transference under pressure of ink, carbon, graphite or other like substances, from acarrier to a surface, to

make on-the latter visible impressions.

.This art isrbest exemplifiedhy the use, as a niaiiifoldin medium, of that article of own as carben-paper, and

media that my invention relates.

The object of m' invention is 'to provide a manifolding-mmfium as a new article of manufacture, which, while possessing, in common with carbon-paper, the property of transferring an impression to the obverse surface of an underlying sheet and preventing an-impresslon on the reversesurface of an overlying sheet, has 'the additional advanta e, due to its novel preparation, of being adapted for uses. for which ordinary carbon paper is unsuited. Thou many such uses might be named, it is su cient to that use which, at present, I deem the 'most important, namely, that of a manifolding culating machines and all others, using inkcarrying bars or arms,

- to;mainifold articles on the {out the use of carbon-paper, the manifoldingfiaeing done on ordinar ,mamier,

ing ribbons the impressions from which are due to the impact ofkey-operated type- I am enabled In the use of, my medium,

withmachine,

sin le sheets of e in the ,usual paper; inserted in the mac to this manifolding 'mediuin the form of a ri bon.'

,, Preliminarily, I will as briefly that mdy invention consists generally in a manifol medium as a new article of m'anufao,

class of. manifolding ink-ribbon for typewriting machines of all kinds including calx with my manifolding ribbon or r-ib'bons lying between them. Though I do -not confine myself applicatlon and use ofmy invention, I shall for the sake of example, both" describe and illustrate m Specification of Letters Patent. Patent d S t 21 1920 1919. Serial 110. 311,060. 7, titre, comprising a foundation one surface of which is provided with a suitable impress1on element, and the opposite surface of wh ch has applied thereto a non-impression element; and it also consists specifically 1n such article of manufacture, when the non- 1mpress1on element is in the form of a coating having a gelatin base.

Inthe: accompanying drawin Figure 1 is a short-section o a ribbonlike manifoldingmedium made in accordance with my invention, showing the obverse or 1mpression element face thereof, which element is omitted in part, to show the foundation.

Fig. 2 is a similar view showing the re- -ivers'e or non-impression element face.

Fig. 3 -:isj'a cross-section of the same. 1 is the "foundation ofmy article. m the present example of the invention, is asuitable fabric, from which ink-ribbons are commonly made.

One face of the foundation, which I may consider the obverse face has a coating 2 of transferable-impression material, say, for example ink. The ink may or may not permeatethe foundation according to the nat'tire ofthe latter. In the case of a fabric ribbon -.the ink would more or less be ab- The other or reverseiface of the founda- C-tion has-applied was coating 3 of anonimpression material, say, for example, a gelatin solution, which is not only a nonimpression elemelifiibntlis also noneabsorptive oftheink, which in the case of a fabric foundation'isfessential.

f In these drawings, I have necessarily 'exaggerated the coatings 2 and 3 and the thickness of the foundation 1, and have endeavcred by the difference inthe shading ofthe coati v to. distinguish theirnatures,

In t generic aspect of my invention, the .fonndation'l ,may be of any material,'-,according to the .useto which, the article is to o the impression element? 'may be of "any kind ofimateri'i 'undenpressure or impact; Likewise, the on-impression element 3 may-be of any material or substance having the property of non-marking under pressure orimpact, and when the foundation and impression element are such that the former absorbs the latter, the non-impression ele- This,

l capable of transfer ment 3 must be non-absorptive of the impression element. I I The non-impression element may be intimately associated with the foundation to "form a part of the article in various ways,

as for example by the use of a liquid or semi-liquid composition adhering as 'a true" coating, or by the use of a more solid material lued or otherwise caused to adhere to the oundation.

In the" preferred and specific manufacture of my manifolding-medium, namely as an ink-ribbon the foundation of fabric has its impression or obverse surface provided or formed in anyknown way, as for example, its treatment with ink, and it has its non-impression or reverse surface, coated with a composition of matter having a gelatin base, said composition being in its simplest form an aqueous solution of gelatin, but in its more compiete form, withthe addition of a silicateof potash or soda com-' monly known as water-glass. i

As an" example of the preparation of th reverse falce of tfhe lfoundIation with an a ueous so ution o e atin, give 30 grains oi gelatin to E oun'FTwater, forming a soft spongy mass. These ingredients are steamed or cooked at about 110 degrees F. until the gelatin is well dissolved, and after the solution has cooled to about 80 degrees F, itis applied to the foundation. 7

In case a silicate be added, I give as an I am not to be understood as confinin example, 30 grains of gelatin, oz. of water and i oz. of alk 1i si 1ca e. his composit1on is prepared and applied as above stated.

These, as stated, are mere examples, and

m self to these proportions, nor to the etails of reparation.

- he gelatin coating is cleanly and impervious to ink, so that it .will not soil the back of the overlying sheet, nor absorb the ink from the usually saturated foundation. It will not therefore, make an impression on the back of the overlying sheet. It is moreover, flexible, and tough, which properties are enhanced, when a silicate is used in the composition, the effect of which renders it more flexible and less liable to crack.

I:claim:* 7 As a new article of manufacture a manifolding medium comprising a foundation MALCGLM L. COSSITT.

Witnesses:

WM. -F. Boom, D. B. RICHARDS.

having on one side means for transferring 

